Reductant Purge Valve
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
The reductant purge valve allows the reductant pump assembly to reverse flow and purge the system when commanded by the PCM. The reductant purge valve is integral to the reductant pump assembly. For additional information on the reductant purge valve, refer to Reductant Pump Assembly description in this article.